Murphy #2

Murphy #2 is an earth dam located in McCone County, Montana, built in 1969. It carries a Low hazard potential classification.

About Murphy #2

The primary purpose of Murphy #2 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Murphy Ranch Inc (private). It impounds the Tr-nelson Creek.

The dam stands 12 feet tall and stretches 250 feet across, has a maximum storage capacity of 356 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1969, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyMcCone
Nearest CityNone
River/StreamTr-nelson Creek
Coordinates47.42220, -106.00390

Physical Characteristics

Dam TypeEarth
NID Height12 ft
Dam Height12 ft
Dam Length250 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage356 acre-ft
Max Storage356 acre-ft
Normal Storage106 acre-ft
Drainage Area14 sq mi
Max Discharge2,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerMURPHY RANCH INC
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT01551
Federal IDMT01551
More InfoState Dam Safety Program

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